Marine Engineering Project Nada Luthfia

P O R T F O L I O MARINE ENGINEERING

NADA LUTHFIA FAJRIN MARINE ENGINEERING PROJECT

2023

NADA LUTHFIA

PROJECT

Final-year students of the Sumatra Institute of Technology's Marine Engineering study program

LIST

Perum. Mustika Raya 2, Blok D2 No. 17 Sidomulyo, Lampung Selatan, Lampung +62 82184682815 nadalthf@gmail.com Nada Luthfia

P R O F I L E HYDRODYNAMIC MODELING

Tidal Current Using 21 Software: I am a final year student in the marineModeling engineering study program MIKE at the Sumatra Institute of Technology who has an interest in working in the offshore and onshore fields.

Has several organizational and internship (Merak Port Case Study) experiences and has the ability to operate AutoCad, MIKE 21, Ansys, ArcGIS, Sketchup and other Marine Engineering software.

HYDRODYNAMIC MODELING

Sea Wave Modeling Using MIKE 21 Software: (Merak Port Case Study)

EDUCATION LEVEL

SUPM Negeri Kotaagung, Lampung Fisheries Product Processing Technology Expertise Program

2016 - 2019

STUDY OF HYDRODYNAMIC CHARACTERISTICS

Institut Teknologi Sumatera Marine Engineering Study Study ofProgram Wave Characteristics:

2019 - Present

(Batang Bay, West Kalimantan Study Case) EXPERIENCES

ANSYS HYDRODYNAMIC DIFFRACTION MODEL

Assistant supervisor Jun 2022 - Aug 2022 Ship (Intern) Motion Prediction Model Using ANSYS KSOP Kelas 1 Panjang, Lampung Hydrodynamic Modeler (Intern) PUSHIDROSAL, Jakarta Utara

Apr 2023 - May 2023

Internal Department Staff

Jun 2021- Feb 2022

HIMATEKLA (Marine Engineering Student Association) Apr 2022- Dec 2022

Head of Creative Information Division

HIMATEKLA (Marine Engineering Student Association)

SKILL AutoCad MIKE 21 ArcGis Ansys Ocean Data View WRPlot View Sketchup

COMPETENCY Fast Learner Problem Solving/Critical Thinking Teamwork Leadership Flexible

PROJECT

LIST HYDRODYNAMIC MODELING Tidal Current Modeling Using MIKE 21 Software: (Merak Port Case Study)

HYDRODYNAMIC MODELING Sea Wave Modeling Using MIKE 21 Software: (Merak Port Case Study)

STUDY OF HYDRODYNAMIC CHARACTERISTICS Study of Wave Characteristics: (Batang Bay, West Kalimantan Case Study)

ANSYS HYDRODYNAMIC DIFFRACTION MODEL Ship Motion Prediction Model Using ANSYS

WAVE BREAKER BUILDING PLANNING (Sasak Beach West Pasaman, West Sumatra Case Study)

HYDRODYNAMIC MODELING Tidal Current Modeling Using MIKE 21 Software: (Merak Port Case Study)

Data Source: PUSHIDROSAL

Data Preparation Bathymetry and coastline data were obtained from the Indonesian Map, then digitized using ArcGIS Then the data saved in (.XYZ) format.

(Coast Line)

(Bathymetri)

(MAP Digitization)

Meshing At this stage the bathymetry and coastline data are inputed into the work area on MIKE Zero Mesh Generator.

Boundaries on the mesh is Line Type. The name of boundaries are North, East, South, West.

Tidal data from MIKE 21 Toolbox Tidal data is created in MIKE 21 Toolbox by inputting a mesh. On this research, tidal data contains from 01/12/2023 00:00 - 03/12/2023 00:00.

Video Animation

Set Up Flow Model Module in MIKE 21 & Running

The Result: This is a visualization of the results of the Tidal Current model.

The image displayed is the current speed

The aim of setting up the module is to input data and select the output that will be produced. After completing the module setup, the next process is running.

01

HYDRODYNAMIC MODELING Sea Wave Modeling Using MIKE 21 Software: (Merak Port Case Study)

Data Source: PUSHIDROSAL ECMWF

Data Preparation Wind Data from web ECMWF contains data from Jan 2013-Dec 2023.

Bathymetri & Coast Line from Indonesia Map Digitized from ArcGIS.

Windrose The dominant winds that blow at Merak Harbor are from the West and Southwest.

Fetch

Meshing in Mesh Generator At this stage the bathymetry and coastline data are inputed into the work area on MIKE Zero Mesh Generator.

Boundaries on the mesh is Line Type. The name of boundaries are North, East, South, West.

Fetch is made in 8 cardinal directions & create using ArcGIS, Next, calculate the effective fetch length. The biggest fetch efektif at Merak Harbor is from the West and Southwest.

Hindcasting Wind Data (Hs, Ts, Dirrection) Hindcasting Method using SPM 84. Forecasting wave data (Hs) and (Ts) will be input into wave modeling using MIKE 21 SW

Set Up Spectral Wave Module in MIKE 21 & Running The Result: Waves move from the north, south and southwest towards the southeast (Harbour).

The significant wave height in Merak Harbor waters in December includes calm waves, between 0.1-0.5 m, meaning it safe for crossing activities. ​ Video Animation

02

STUDY OF HYDRODYNAMIC CHARACTERISTICS Study of Wave Characteristics: (Batang Bay, West Kalimantan Case Study)

Bathymetry & Coast Line Data digitization

Case Study Area at Batang Bay, West Kalimantan

Windrose 2013-2022 in Case Area Study. The dominant winds blow from the North West & South East

Data Source: PUSHIDROSAL ECMWF

Fetch 5 Cardinal Directions

Mesh, Contain Open and Land Boundaries

Hindacasting Wind Data Using SPM 84 Methods. (Jan 2013 - Des 2022)

Video Animation

Conclusion:

The highest Hs in the west season occurred in 2015 at 0.77 m with Ts of 3.17 s. In the 1 Hs transition season, the highest occurred in 2021 at 0.74 m with Ts of 3.30 s.

In the east season the highest Hs occurred in 2018 at 0.57 m with Ts of 2.76 s. In the 2 Hs transition season, the highest occurred in 2018 at 0.50 m with Ts of 2.97 s.

Wave movement patterns, waves coming from outside the bay move into the bay.​

Wave Model Visualization in the West Monsoon (18/Jan/2022 15:00)

The waves in the waters of Batang Bay are safe for ship transportation activities.

03

ANSYS HYDRODYNAMIC DIFFRACTION MODEL Ship Motion Prediction Model Using ANSYS Data Source: Djatmiko Erlambang

Modul Hydrodinamic Diffraction

Geometri Hull

Model Hull/ Structure Selection

Set Up Meshing Element Size =0.1 m Max. Freq. =1.31979 Hz

Hydrodinamic Diffraction

Wave Direction Wave Range = -180 -180 deg

Analysis Setting

Interval = 90

Wave Grid =81 x 51

Video Animation

Solution Hydrostatic

RAOs

Pressures and Motions

Freq. =1.319 79 Hz Direct . = -180 deg Wave Aplitu de = 0.1 m

04

WAVE BREAKER BUILDING PLANNING Sasak Beach West Pasaman, West Sumatra Case Study) Team: -Albon Simanjorang - Nada Luthfia

Data preparation and Initial step

Tidal Data

Sasak Beach in West Pasaman experienced severe abrasion. Proper coastal protection structures are needed

Wind data displayed in a windrose diagram

Tidal Harmonic Constant

Making fetch and fetch effective using ArcGIS.

Hindcasting and calculation of building structures

Calculating hindcasting values and return period using Fisher Tippet II.

Calculation of refraction with a total of 4 pias

Calculation of building structures

Lay Out the Breakwater Plan

Total breakwater 3 units

Breakwater Design Using dolos armor

Side view

Transverse view

Hydrostatic

RAOs

05

T H A N K

Y O U

Contact: nadalthf@gmail.com